Heater lamp



FIG. 1 is a perspective view of the design for a heater lamp as seen from the front, bottom;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front side elevational view thereof;

FIG. 5 is a rear side elevational view thereof, being the same as in FIG. 4;

FIG. 6 is a right side elevational view thereof; and,

FIG. 7 is a left side elevational view thereof, being the same as in FIG. 6.

The broken line disclosure is for environmental purposes only and does not form a part of the claimed design. 

CLAIM The ornamental design for a heater lamp, as shown and described. 